If you're diving into the world of high-performance engines, you’ve probably heard of Eagle Crankshafts. These bad boys are known for their incredible strength and quality without breaking the bank. I’ve had my hands on a few of these cranks, and let me tell you, they are built to last. Each crank is forged using a non-twist method, which is a fancy way of saying they’re designed to handle some serious power. Plus, they go through a multi-stage heat treatment process that includes stress relieving, shot peening, and nitriding. All that means you’re getting a crankshaft that’s ready to take on the toughest challenges you throw at it.

Now, let’s talk about the details. Every journal on these cranks is micropolished to a 3 or better R.A. finish, which is crucial for reducing friction and wear. And here’s a little insider tip: they use a 0.125” radius on the journals to boost strength, so you’ll need to grab some chamfered bearings to match. This is the kind of attention to detail that makes these cranks shine, especially when you're pushing your engine up to 1500HP.

For those of you looking to shave off some weight, Eagle also offers lightweight versions of their forged 4340 steel crankshafts. They’ve got knife-edged counterweights that help reduce weight and improve windage, typically dropping around 5-6 lbs. That’s a nice little bonus if you’re trying to squeeze every bit of performance out of your setup.

If you’re not looking to go all-out with a forged crank, Eagle’s cast steel options are a solid alternative to the factory cast cranks. These are designed with all radii at .092”, meaning you can stick with O.E. style bearings. They’re recommended for setups up to 500hp and are designed for 28 in-oz. external balance, making them a reliable choice for more modest builds.

Features:

• Material: Forged 4340 steel
• Intended balance: Internal
• Target bobweight: 1600g
• Stroke: 3.750"
• Rod journal: 2.000"
• Rod journal width: 1.900"
• Main journals: 2.657"
• Minimum rod length: 5.950"
• Typical weight: 51 lbs.
• Rear seal diameter: Call
• Snout diameter: Call
• Flywheel bolts: 8
• Pilot bore diameter: Call
• Flywheel register diameter: Call

Fitment:

• Ford Crown Victoria 1992-2009
• Ford E-150 1997-2008
• Ford Expedition 1997-2004
• Ford Explorer 2002-2009
• Ford F-150 1997-2000
• Ford Mustang Bullitt 2008-2009
• Ford Thunderbird 1994-1997

Note:

• Crankshaft must be balanced to match your specific rods and pistons.

In summary, whether you’re building a beastly engine or just upgrading your daily driver, Eagle Crankshafts have the strength and reliability to get the job done. You won't regret adding one of these to your setup.